Russian military bloggers said Ukrainian forces had managed to breach through defensive lines in places south of Orikhiv, a town around 6 miles north of Roboytne.
It is a sign Kyiv has decided to commit thousands of well-trained troops, previously held back in anticipation for a breakthrough, to the assault.
Also, one of the sources from the article confirming the geolocation is here:
https://www.understandingwar.org/backgrounder/ukraine-conflict-updates